Question

ПОМОГИТЕ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

1) $27^x = frac{1}{3}$
$3 ^{3x} =3^{-1}$
$3x=-1$
$x=- frac{1}{3}$


2) $400^x= frac{1}{20}$
$20^{2x} = 20^{-1}$
$2x=-1$
$x=- frac{1}{2}$